In a recent study published in the Journal of Soil Science and Plant Nutrition, Taghreed S. Alnusaire and colleagues explored the impact of biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More on pea plant growth. Biochar, a carbon-rich material produced from biomassBiomass is a complex biological organic or non-organic solid product derived from living or recently living organism and available naturally. Various types of wastes such as animal manure, waste paper, sludge and many industrial wastes are also treated as biomass because like natural biomass these More like agricultural and forest residues, has garnered attention for its potential to improve soil and plant health. This research specifically examined how different biochar treatments affected the growth, physiology, and biochemistry of pea seedlings.  

The study revealed that a mixed biochar treatment, combining wood and vegetable biochar (WVBc), significantly enhanced pea plant development. WVBc treatment led to a 75.45% increase in root length compared to the control group. Shoot length also improved by 32.4%, and shoot fresh weight increased by 43.4% with the mixed biochar.  

Furthermore, the combined biochar enhanced photosynthesis, with total chlorophyll content increasing by 50.1%. The net photosynthetic rate rose by 28.3%, indicating more efficient energy production in the plants. The mixed biochar also improved water retention and use, as relative water content increased by 17.0%, and water use efficiency by 22.5%.  

Biochemical analysis showed that the mixed biochar boosted total protein and carbohydrate content in the pea seedlings. Additionally, the plants showed signs of improved stress tolerance: glycine betaine production increased by 44.7%, while proline content, an indicator of stress, decreased by 46.1%. The biochar treatments also reduced oxidative stress markers and enhanced antioxidant defenses.  

Overall, the study suggests that a mixture of wood and vegetable biochar is a promising soil amendmentA soil amendment is any material added to the soil to enhance its physical or chemical properties, improving its suitability for plant growth. Biochar is considered a soil amendment as it can improve soil structure, water retention, nutrient availability, and microbial activity.   More for enhancing pea plant growth, nutrient uptake, and stress tolerance. This finding has significant implications for sustainable agriculture and mitigating the effects of climate change on crop productivity.  

SOURCE: Alnusaire, T. S., Alazmi, N. K., & AL-Shammari, R. F. (2025). Improved Nutrient Uptake and Stress Tolerance in Pisum sativum L. Through Wood and Vegetable Biochar Applications. Journal of Soil Science and Plant Nutrition, 0(0), 1–10.